?matches at most one character from the set below:
+the literal + (4310 / 538 / 2B16)
-the literal - (4510 / 558 / 2D16)
\d?optionally matches a digit
.?optionally matches any character (except for line terminators)
\d?optionally matches a digit
xthe literal x (12010 / 1708 / 7816) (case sensitive)
\^?optionally matches the literal ^ (9410 / 1368 / 5E16)
\(?optionally matches the literal ( (4010 / 508 / 2816)
?matches at most one character from the set below:
+the literal + (4310 / 538 / 2B16)
-the literal - (4510 / 558 / 2D16)
\d*a digit, repeated any number of times
\.?optionally matches the literal . (4610 / 568 / 2E16)
\d*a digit, repeated any number of times
\)?optionally matches the literal ) (4110 / 518 / 2916)
g modifier: global. Finds all matches instead of stopping after the first